3.Troubleshooting: Paper Delivery Problems
426
Paper Transport Problems on Main Machine
Fan on Optional Buffer Pass Unit Generates Noise
Solution
Set No. 0311"Buffer Pass Unit Fan Activation Setting" in "Adjustment Settings for Operators" (or SP1-
932-002) according to the paper type currently used.
Depending on the setting, blocking (heat and pressure causing toner particles on stacked
copies to form clumps which then detach) may occur. When a blocking occurs, activate the
fan.
White Spots/Scratches Due to Paper Dusts
Cause
Paper dusts on paper surface can generate white spots.
Scratches may occur on the image depending on the amount of paper powder and paper type.
Solution
Clean the Dust tray, transfer timing roller, and guide plates in the paper transporting paths (Main
machine, A3LCT, Bypass Tray).
As for the guide plates, the problem is solved by cleaning the guide plates from the paper tray loaded
with the paper where white spots or scratches occur and the paper reversing part to the transporting
paths including the duplex transportation path.
The following picture shows the example of the paper transporting path: from the main
machine (Tray1 and 2), RT5110 (Tray 3 through 5), and bypass tray to the Paper transfer roller
[A].
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